139319295025 has 27 divisors (see below), whose sum is σ = 182373308481. Its totient is φ = 105562486080.

The previous prime is 139319295013. The next prime is 139319295077. The reversal of 139319295025 is 520592913931.

The square root of 139319295025 is 373255.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 36993521569 + 102325773456 = 192337^2 + 319884^2 .

It is not a de Polignac number, because 139319295025 - 2¹¹ = 139319292977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139319295025.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 35457261 + ... + 35461189.

Almost surely, 2^139319295025 is an apocalyptic number.

139319295025 is the 373255-th square number.

139319295025 is the 186628-th centered octagonal number.

It is an amenable number.

139319295025 is a deficient number, since it is larger than the sum of its proper divisors (43054013456).

139319295025 is an frugal number, since it uses more digits than its factorization.

139319295025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7906 (or 3953 counting only the distinct ones).

The product of its (nonzero) digits is 656100, while the sum is 49.

Multiplying 139319295025 by its sum of digits (49), we get a square (6826645456225 = 2612785²).

The spelling of 139319295025 in words is "one hundred thirty-nine billion, three hundred nineteen million, two hundred ninety-five thousand, twenty-five".